jellyfin/MediaBrowser.Server.Implementations/ScheduledTasks/RefreshIntrosTask.cs

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using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Logging;
using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
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using CommonIO;
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namespace MediaBrowser.Server.Implementations.ScheduledTasks
{
/// <summary>
/// Class RefreshIntrosTask
/// </summary>
public class RefreshIntrosTask : ILibraryPostScanTask
{
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
private readonly IFileSystem _fileSystem;
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/// <summary>
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/// Initializes a new instance of the <see cref="RefreshIntrosTask" /> class.
/// </summary>
/// <param name="libraryManager">The library manager.</param>
/// <param name="logger">The logger.</param>
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/// <param name="fileSystem">The file system.</param>
public RefreshIntrosTask(ILibraryManager libraryManager, ILogger logger, IFileSystem fileSystem)
{
_libraryManager = libraryManager;
_logger = logger;
_fileSystem = fileSystem;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
var files = _libraryManager.GetAllIntroFiles().ToList();
var numComplete = 0;
foreach (var file in files)
{
cancellationToken.ThrowIfCancellationRequested();
try
{
await RefreshIntro(file, cancellationToken).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
_logger.ErrorException("Error refreshing intro {0}", ex, file);
}
numComplete++;
double percent = numComplete;
percent /= files.Count;
progress.Report(percent * 100);
}
}
/// <summary>
/// Refreshes the intro.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task RefreshIntro(string path, CancellationToken cancellationToken)
{
var item = _libraryManager.ResolvePath(_fileSystem.GetFileSystemInfo(path));
if (item == null)
{
_logger.Error("Intro resolver returned null for {0}", path);
return;
}
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var dbItem = _libraryManager.GetItemById(item.Id);
if (dbItem != null)
{
item = dbItem;
}
// Force the save if it's a new item
await item.RefreshMetadata(cancellationToken).ConfigureAwait(false);
}
}
}